Hose-coupling.



E. W. WHITMORE.

HOSE GOUPLING.

APPLIUATION Hum JULY 25. 190e.

916,076. Patented Mar. 23, 1909.

I i" 'n IhUervO/ ERWIN W. WHITMORE, OF LYNN,MASSACHUSETTS.

HosE-coUPmNG.

Y Specification of Letters Patent.

'Patented March 23, 13909.

Application led. July 25, 1906. Serial No. 327,759.

To all whom it may concern.'

Be it known that I, ERWIN W. WHITMORE, of Lynn, in the county of Essex,State of Massachusetts, have invented certain new and usefulImprovements in Hose-Cou lings or Joining Devices; and I declare theflollowing to be a full, clear, and exact description of the same, suchas will enable those skilled in the art to which it appertains to makeand use the invention.

This invention relates to a hose-coupling, or joining-device, consistingbroadly of an internal joining-member, and an external clamping-member,adapted to be operated by suitable means, whereby a water-tight joint isobtained.

y The object of this device is to provide a simple, inexpensive andpositive coupling or joining-device.

The further object of this invention is to rovide an internaljoining-member of a orm easily inserted, but difficult to withdraw.

Referring to the drawings, and in detail, Figure 1 is an elevation,.illustrating the relative positions of the various ,members Fig. 2 is anenlarged cross-section, on the line 2 2, Fig. 1. Fig. 3 is an enlargedsection, taken on the line 3-3, Fig. 1. Fig. 4 is a plan view of theclamping-member. Fig. 5 is a side view, in elevation, of said clampingmember. Fig. 6 illustrates an alternative construction of thejoiningmember.

Referring to Fig. 1, 10 and 11 are the joined hose-members, meetingapproximatel at the center of the joining-member or t imble 12. This ispreferably symmetrical in form, with tapered ends 13 and 14, adapted toreadily enter the hose-members 10 and 11. It is further provided withannular saw-teeth, which offer no resistance to the entrance of thethimble, but render its withdrawal practically impossible. The centralportion 15 of the thimble is of a decreased diameter, providing therebya shoulder, against which the hose-members 10 and 11 are securelyclamped by means of the external clamping-member 16'. Referring to Figs.4 and 5, said member 16, is extended at one extremity into a tongue 17,adapted to coperate with slots 18. vIt is rovided with projections 19,adapted to gite into the hose-members 10 and 11. I do not confine myselfto any particular location of these projections, as they may be inexterior lines as the projections 19, or interior lines as shown at 20.In operation, the thimble is inserted equally, as far as ossible, intothe two hose-members 10 and) 11, and the clampin member 16, placedaround. A suitab e tightener is next placed in position. The ends of thehose-members 10 and 11 are thereby de ressed into the central portion 15of the t imble. The tongue 17 is then passed through one of thecooperating slots 18, reflexed back upon itself, and locked byy beingpassed throu h the locking slots 180. The teeth 19 are nally embedded inthe hose-members 10 and 11, and, coperating with Vthe annular saw-teeth21, render it im ossible for the hose-members 10 and 11 to Ibeseparated, and at the same time, by the 1powerful sphincter-gripobtained, an abso utely water-tight joint is secured, easily made, andat a minimum cost.

Referring to Fig. 9, this shows a thimble of sheet-metal, as analternative construction, to take the place of the thimble 12. The ends30 and 31 are tapered as in the dotted position 310, and the tapercollars 32 and 33 placed in position. The ends 30 and 31 are then spuninto the positions 34 and 35, thereby rendering the constructionintegral. This method provides an easy, and inexpensive construction ofa metal tlilmble, whenever the use of such is desira e.

In accordance with the provisions of the patent statutes, I havedescribed the principle of operation of my invention, together withtheapparatus which I now consider to re )resent the best embodimentthereof, but desire to have it understood that the alpparatus shown isonly illustrative, and tiat my invention can be carried out by othermeans.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is-

1. In combination with two lengths of a flexible hose, a coupling,comprising a thimble, symmetrically inserted therein, a metallicbindingstrip adapted to register therewith, said strip being extended atone extremity into a tongue, and provided at the other extremity withslotted means with which said tongue is adapted to cooperate with aslotted locking means located at the base of said ton ue, into whichsaid tongue is inserted after eing reflexed.

2. In combination with two lengths of flexible hose, a coupling,comprising a thimble, symmetrically inserted therein, a metallicbinding-strip, provided with internal radial projections for the purposeof increasing the stabilit of the union of the two hoseflengthe, anextended at one extremity-,into aftongue and provided at the otherextremity with 'slotted \means with which said tongue is adapted tocoperate, and slotted means located at the base of said tongue intowhich said tongue is inincreasing the stabilit base ofsaid tongue intowhich said tongue is inserted after eing reflexed. l 4.; Inylcombination with two lengths of flexible hose, a coupling, comprising afthimble having a central portion of reduced i diameter, a metallicbinding-strip provided 4with internal radial projections adapted tocoperate lwith said reduced diameter for the lpurpose of increasing thestability of the vided at the other extremity with 'a slottedl meanswith which saidtongue is adapted to coperate with a slotted lockingmeans located at the base of said ton ue, into which said tongue. isinserted after eing reflexed.

5. In combination with a flexible hose,a cou ling, comprising a thimblerovided wit a plurality of annular saw-test at both ends, Said ends beintapered, al collar adapted to form annu ar saw-teeth, laced thereon, theouter extremities of sai ends being reflexed back on said collar,thereby forming a plurality of annular saw-teeth, and securin saidcollar or collars in position, a meta strip ada ted to re ister withsaid thimble, said strip eing provided with a lurality of teeth adaptedto bite into the,

j ose, said strilp having a tongue adapted l'to coperate wit flexed backon itself, and to coperate with locking-slots in said strip, for thepurpose of making a water-tight joint.

In vtestimony whereof I have hereunto signed my name to thisspecification, in the presence of two witnesses.

ERWIN W. WHITMORE.

Witnesses:

-W1LLIAM J. BALDWIN,

DUGALD MoK. MGKILLoP.

slots in said strip, to be re-

